Introduction to radiologic science( chapter 1) Questions with Correct Solutions

Myelography - Visualize of spinal cord Arthrography - Visualize of joint spaces Bone densitometry - Using x ray to detect osteoporosis by measurement of bone density. Cardiovascular interventional technology( CVIT) - Radiology procedures for diagnosis and treatment of cardiovascular disease. Computer tomography(CT) - Using x ray to record the body structure though a computer Sonography - Using ultrasonic waves directed into tissue, visualization the deep soft structure of body Magnetic resonance imaging (MRI) - Using magnetic field and radio frequencies to creat sectional image of the body. Mammography - Radiography of breast Nuclear medicine technology - Radioactive substances inside the body for both diagnostic and therapeutic. Radiation therapy - Treatment of disease by high dose of x rays Radiography - Recording the body structure on the film and image system by passing x ray and gamma ray. X ray - Electromagnetic radiation of short wavelength that is produced when electrons moving at high velocity are suddenly stopped. Radiologic technologist ( tech) - Performs radiography,radiation therapy, or nuclear medicine. Radiologist( doctor) - Physician use x ray to treat or diagnosis disease. Types of energy - 1. Mechanical (sound) 2. Electrical ( electrocardiography,electroencephography) 3. Heat( body emitted heat energy , - thermograns)ar ( emitted by the nucleus of an atom-gamma radiation) 5. Electromagnetic Ionization - Atom gains or loses an electron , acquiring a net charge. ( high energy , x ray can ionize atoms in matter) 1895 - Wilhelm Rontgen discovered x ray ( his wife hand ) Registered technologist must - Completed an accredited radiography program and take the national exam offered by ARRT ARRT - American Register radiologic technologist ASRT - American society radiologic technologist